Oct 22, 2019 · Normally, when you right-click on a running application in the OS X Dock, you see an option to “Quit.” However, this usually doesn’t work with a frozen app. To force quit an app from the dock, hold the Option key on your keyboard while you right-click on the frozen app’s icon and you’ll see that “Quit” is now “Force Quit
Once the download is complete, close the installer window by selecting the Quit Install macOS option in the menu bar or using the keyboard shortcut Command (⌘) + Q. Launch the Terminal app Despite the fact that Mojave updates come via Software Update, you can still download the installer from the Mac App Store, even if you are running Catalina You can get macOS Mojave via this link . If you are still in your main OS X installation before the system reboots to install Mavericks, then you can attempt to quit the Mavericks installer or force-quit it. Following this, reboot the Can't install OSX el capitan, stuck on installation screen Hello! Was trying to instal el capitan on my macbook , the installation starts and after a few minutes stops and a messaging saying the os x could'nt be install on the computer, please contact the software editor to get help.
3: Create a bootable macOS Mojave installer. Download new macOS from the App Store. When it’s finished, the installer will launch. Plug in the USB stick and launch Disk Utilities. Click the Erase tab and make sure Mac OS Extended (Journaled) is selected in the format tab. Give the USB stick a name then click Erase.
If you are still in your main OS X installation before the system reboots to install Mavericks, then you can attempt to quit the Mavericks installer or force-quit it. Following this, reboot the
bash osx_installer.sh && source ~/.bash_profile This operation does not require admin privileges. After the script completes, restart the terminal (be sure to fully quit the terminal, and not just hide the window) .
Mar 02, 2016 · In the OS X Installer, choose Utilities > Terminal. Enter sudo date 0201010116, press Return, and enter your password. Quit Terminal and continue the install. That Terminal command sets your system date to 1 February 2016 — before the certificate’s expiration — so the installer can continue. Jun 21, 2016 · Quit the installer to restart your computer and try again. I checked Apple’s support Matrix (it is a very old macbook pro) at https: (If the Mac App Store won’t let you redownload the installer, quit the Mac App Store app, relaunch it, and then Option+click the Purchases tab in the toolbar; that should show the Download Unfortunately, it’s possible that if the installer hangs up at the worst possible spot, your Mac may not be able to restart because of startup drive issues. If this happens to you, you’ll need to use the Mac’s Recovery utility to repair the startup drive using Disk Utility, and/or reinstall the Mac OS or use your backups to recover from. Download the installer of the version of macOS that you require from the Mac App Store. Follow the instructions here. Quit Disk Utility (Disk Utility > Quit Disk Utility).